How do I perform ACTIVATION on the windows SERVER CORE?

 

To perform the ACTIVATION on the windows SERVER CORE type the following at the command prompt:

slmgr.vbs –ato

If activation is successful, no message will return in the command prompt.

 

OR

 

You can also activate by phone, using a Key Management Service (KMS) server, or remotely by typing the following command at a command prompt of a computer that is running Windows Vista or Windows Server 2008:

cscript windows\system32\slmgr.vbs <ServerName> <UserName> <password>:-ato